Two propagation methods of Platycodon grandiflorum

As Platycodon grandiflorum is often propagated in large numbers, it is best to choose high-yielding plants for the reproduction of Platycodon grandiflorum. Platycodon grandiflorum generally uses sowing method to propagate, and can also use seedling transplanting method. Generally, Platycodon grandiflorum has the best sowing quality in autumn, and sowing in winter or spring is also possible.

Campanula grandiflorum

First, the use of seeds for reproduction: the growth period is 2 years.

Live broadcast is generally used in production. Platycodon grandiflorum seeds are small, with a 1000-seed weight of 1.5g and a germination rate of 85%. When the temperature is 1825 ℃ and the humidity is sufficient, the seedlings emerge 10-15 days after sowing.

Winter sowing or spring sowing: winter sowing from November to January of the following year, spring sowing from March to April. It is better to sow in winter, generally using sowing. When sowing, mix the seeds well with tidal fine sand (the proportion is 1 pot of soil and mix 0. 3kg seed) sprinkled on the border surface, sweep it gently with a broom, to the extent that the seed is not seen (that is, the thickness of the soil cover is about 2.5-3mm), shake slightly. The following spring, the seedlings emerged early. In spring sowing, in order to make the seedlings emerge neatly, the seeds must be treated or soaked with cover grass after sowing (treatment method: soak the seeds in 30 ℃ warm water, soak them out for 8 hours, wrap them in a wet cloth, put them in a place of 25: 30 ℃, cover them with wet hemp slices, accelerate germination, and rinse and filter with warm water once a day. It takes about 5 days for the seeds to germinate and sow. The sowing method is the same as that of winter sowing, keep the soil moist for a long time, and generally emerge in about 15 days. The seed consumption per mu is 2.5kg.

Second, seedling transplanting: the growing period is 1 year.

1. Seedling raising: Platycodon grandiflorum seedlings can be transplanted from April to June, too early, because the small size of Platycodon grandiflorum seedlings affects the quality of seedlings, too late seedlings greatly affect transplanting, the general amount of seeds per mu 10~12kg (some experimental fields according to 15kg). Specific method: select the land neither in the high slope nor in the low-lying field, it is best to choose the field with good drainage, the land should be cultivated carefully, the bottom fertilizer should be applied, the border should be turned more than one and a half feet deep, and the border surface should be adjusted to facilitate sprinkler irrigation in case of drought. Then the Platycodon grandiflorum seeds are mixed with fine soil and sowed evenly, slightly under shock pressure, covered with weeds, and keep the soil moist. Generally, seedlings can emerge in 10 days and 12 days after emergence. Choose rainy days to remove mulch to facilitate seedling growth.

2. Transplanting: the growing period is 1 year. One-year-old Platycodon grandiflorum seedlings were selected before sprouting from autumn and winter of that year to spring of the following year, and were graded and planted respectively. When planting, the trench of 25cm was opened according to the row spacing 20cm, and then the Platycodon grandiflorum seedlings were obliquely inserted into the ditch at an angle of 75o. According to the plant spacing 6~8cm, the soil cover should be slightly higher than the seedling 3cm.

The cultivation method of Platycodon grandiflorum, how does Platycodon grandiflorum reproduce?

Platycodon grandiflorum likes cool climate, cold resistance and sunshine. It is suitable to be cultivated in the hilly area below 1100m above sea level and in semi-sunny sandy loam, the neutral sandy soil rich in phosphorus and potassium fertilizer grows better, and the seed life is 1 year, and stored at low temperature can prolong the seed life. The germination rate of 0-4 ℃ dry storage seeds was 3.5-4 times higher than that of normal temperature storage for 18 months. The seed germination rate is 70%, the temperature is 18-25 ℃, there is enough temperature, and the seedlings will emerge 15 days after sowing.

Platycodon grandiflorum, alias Baodang flower, bell clang flower, monarch flower, is a perennial herb, stem 20-120 cm high, usually glabrous, occasionally densely shortly hairy, unbranched, rarely branched. Leaves all whorled, some whorled to all alternate, sessile or with very short stalks, leaf blade ovate, ovate-elliptic to lanceolate, leaves ovate or ovate-lanceolate, flowers dark blue or dark purplish white.

Planting method of Platycodon grandiflorum

1. Soil selection

Platycodon grandiflorum likes the growth environment of warm and humid, sunny and abundant rainfall. Platycodon grandiflorum does not require high climatic environment, but the soil is better in sandy loam with deep soil layer, fertile soil, good drainage and rich humus. Platycodon grandiflorum likes cool and humid environment, and most wild Platycodon grandiflorum flowers grow in sunny slopes and grass, so it is not suitable to grow Platycodon grandiflorum in low-lying and flooded areas.

2. Disease and pest control

The common diseases and insect pests of Platycodon grandiflorum are root rot, aphids, red spiders and so on. When the root rot of Platycodon grandiflorum occurs, the diseased leaves are covered with ash powder, which seriously leads to the wilt of the whole plant. The prevention and control method is to spray with Baomei 0.3 degree stone sulfur mixture or Baifenjing liquid at the beginning of the disease or with 1800 times solution of 20% vermiculent powder. If Platycodon grandiflorum is attacked by aphids or red spiders, 40% dimethoate emulsion 1500-2000 times or 80% dichlorvos emulsion 1500 times can be sprayed every 10 days.

3. Fertilizer and water management

The peak growing season of Platycodon grandiflorum is from June to September. Topdressing should be applied in late June and July according to the growth situation of Platycodon grandiflorum. Fertilizer is mainly human and animal manure, combined with a small amount of phosphate fertilizer and urea. Watering during drought, Rain Water should pay attention to drainage when abundant, Platycodon grandiflorum is easy to rot roots, need to prevent soil stagnant water. The florescence of Platycodon grandiflorum is as long as 4 months, and picking flowers can increase the yield.

Propagation methods of Platycodon grandiflorum

1. Variety

In the plots where Platycodon grandiflorum was cultivated, a small amount of white flower Platycodon grandiflorum appeared, which had stable heredity and high yield. However, the contents of saponins and amino acids and hemolysis were lower than those of Platycodon grandiflorum. The pharmacological properties of the two kinds of Platycodon grandiflorum saponins are exactly the same. There is a fast-growing southern type of Platycodon grandiflorum in purple flower Platycodon grandiflorum and a kind of yellow flower Platycodon grandiflorum in Tonghua, Jilin Province.

2. Land selection and preparation

Choose sunny sloping land with deep soil layer or flat land with good drainage. Deep ploughing 30-40 cm, combined with the application of base fertilizer, fine broken soil, leveling, to make a bed 1.3-1.7 meters wide.

⑴ seed treatment

Soaking seeds in warm water for 24 hours or soaking seeds with 0.3% potassium permanganate for 12 hours can increase the germination rate.

⑵ sowing date

Autumn sowing, winter sowing and spring sowing are all available, and autumn sowing is the best. Autumn sowing produces seedlings in the same year and the growing period is long, and the fruiting rate and root diameter are significantly higher than those of spring sowing in the following year.

⑶ sowing method

Generally use direct seeding, can also raise seedlings transplanting direct seeding yield is higher than transplanting, and the quality is good. Strip broadcasting is often used in production. On the border, open the horizontal ditch according to the center distance of 20-25 cm, with a depth of 4-7 cm, sowing width of 10 cm, and cover small ash after sowing. 500-750 grams of seeds per mu for direct seeding and 250-350 grams per mu for seedlings. In addition, tissue culture can also be used to come back and breed.

Field management technology

⑴ inter-seedling and supplementary seedling

When the seedling height is 2 cm, the seedling is thinned properly, when the seedling height is 3-4 cm, the seedling is fixed, and 1 strong seedling is retained with 10-13 cm. Replenishing seedlings and inter-seedlings are carried out at the same time, the seedlings with soil are easy to survive.

⑵ ploughing and weeding

Weeding 3 times, the first time when the seedling height is 7-10 cm, the second time after a month, and the third time after a month.

⑶ topping

When the seedling height is 10 cm, leave the planting plant to top to increase the number of seeds and the plumpness of seeds, and increase the seed yield.

Topdressing and soil cultivation with ⑷

When the seedling height is 1-2 cm, the application of light human and animal dung water per mu is 1000 kg, and when the seedling height is 6-7 cm, 10 kg calcium superphosphate per mu is applied in the ditch, and then 1200 kg of light human and animal manure water is applied to the cave and cultivate the soil. In the following spring, when the seedlings were 6-7 cm high and before flowering, 1500 kg of human and animal feces and 5 kg of urea were applied per mu.

⑸ flower removal

Platycodon grandiflorum has a long flowering period, flowers and fruits grow and develop, consume a lot of nutrients, remove flowers and fruits, reduce nutrient consumption and make more assimilates stored in the roots, which is an effective measure to increase yield.

The efficacy of Platycodon grandiflorum

① releases lungs and expels phlegm

Platycodon grandiflorum powder bitter diarrhea, open lung qi, expectorant and pharynx, is an important drug for the treatment of lung meridian disease. It can be used to treat cough with more phlegm, regardless of cold and heat.

② pharynx

Platycodon grandiflorum can release the lungs and relieve heat. It can treat hoarseness with pharynx, pharynx, dysphagia, sore throat, heat toxin and other diseases.

③ purulent

Platycodon grandiflorum powder ascending, can benefit lung qi to discharge pus sputum, can be used to treat lung carbuncle cough chest pain, sputum fishy smell and so on.

④ can defecate.

Platycodon grandiflorum can be used in the treatment of constipation and constipation.

The function of Platycodon grandiflorum

① anti-inflammation

Platycodon grandiflorum saponins have strong anti-inflammatory effects on acute and chronic inflammation. Platycodon grandiflorum has no obvious anti-inflammatory effect, but its water extract can enhance the phagocytosis of macrophages, enhance the bactericidal activity of neutrophils and increase the activity of lysozyme.

② expectorant and antitussive

The saponins contained in Platycodon grandiflorum can stimulate gastric mucosa, cause mild nausea, reflex cause increased secretion of bronchial glands, dilute sputum, and play the role of expectorant.

③ lowers blood pressure

Platycodon grandiflorum crude saponins can reduce blood pressure, slow down heart rate and inhibit respiration.

④ hypoglycemia

The water and alcohol extracts of Platycodon grandiflorum have hypoglycemic effect. In addition, Platycodon grandiflorum has the effects of diuresis and detumescence, anti-allergy and anti-tumor.

What is the flower language of Platycodon grandiflorum?

1. Hopeless love.

2. Eternal love; sincerity, meekness, sadness.

Flower language of Platycodon grandiflorum Culture method of Platycodon grandiflorum

Platycodon grandiflorum is widely distributed in our country because it has low requirements for climate and can be planted in most areas. What is the flower language of Platycodon grandiflorum? Next, let's talk about the culture method of Platycodon grandiflorum.

The flower words of Platycodon grandiflorum:

There are two kinds of words about Platycodon grandiflorum flower: one is "eternal love, immutable love, honest, docile, unforgettable love", and the other is "hopeless love".

The reason why there are two completely different flower words, it is said that it is said that Platycodon grandiflorum blossoms represents happiness coming again, but some people can grasp happiness, but some people are doomed to miss it and can not grasp it. So Platycodon grandiflorum flower has a double meaning: eternal love and hopeless love.

In addition, the Platycodon grandiflorum, which is often used as a cut flower, is usually Platycodon grandiflorum, while the flower language of Platycodon grandiflorum is touching, emotional and constant love only for you.

Culture methods of Platycodon grandiflorum flowers:

The main results are as follows: 1. The basin owner requires good drainage and the sandy loam containing humus grows well between PH 5.0 and 6.5. The pot culture soil was prepared with 4 parts of sandy loam, 4 parts of rotten leaf soil, 2 parts of garden soil, and properly mixed with some mature soybean cake powder. The sowing time of Platycodon grandiflorum should be in April or September in Jiangnan, and it will blossom every other year after planting. According to the summary of some planting units, sowing in April is better, because the seedlings are slightly larger, which is conducive to overwintering management. Cover 1 cm of soil after sowing, often keep moist, germinate at an appropriate temperature of 15 to 20 ℃, and emerge in 15 to 20 days. Seedling height 3 cm time seedling, 6 cm time planting or pot. In the family, ramet reproduction is the easiest, which is carried out in spring and autumn.

2. Potted Platycodon grandiflorum flowers should control water and fertilizer. Sufficient water and fertilizer can easily make the plant grow and reduce the ornamental value. The seedling height of 10 centimeters should be buckled. Apply calcium superphosphate 1 or 2 times before flowering to make the flowers pure. After flowering, it is appropriate to shade properly to prolong the flowering period. Cut off the flower stem after the final blossom, and apply a rotten bean cake liquid fertilizer in time to grow roots. Spring and autumn are generally watered once every 3 to 4 days, once after 5pm every summer, and generally not watered in winter. Cut off the ground over the winter and put it in a place where there is plenty of sunshine and no freezing in winter, and new branches will be issued from the old roots next year. Usually turn the basin once every two years. Red spiders are harmful to drought, so you can use dimethoate to spray with 2000 times dilution.